Hi Ducksandwich
This is what is under men's underwear.

A jockstrap is not briefs. I just did a google image search for jockstrap and briefs do not show a man's behind. Could you kindly consider adding briefs as it's own disambugated word, or add it under Men's underpants?
(Edited on 2013-01-29 07:18:09 by 4x6)